Two angles, ∠1 and ∠2 , in a diagram are supplementary. If m∠1=77° , what equation can you write to solve for m∠2 ? Let m∠2=x°

(1 point)

m∠1 + m∠2 = 180

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The equation to solve for m∠2 would be:

m∠1 + m∠2 = 180